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Thread: My first roadside repair *sniff*

  1. #31
    Should Get Out More ink ink's Avatar
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    Default Re: My first roadside repair *sniff*


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    Quote Originally Posted by Zanx View Post
    Wouldn't it be ok to just let the diesel/air dribble out the injector nut?
    I don't think it will bleed through the injection pump to the injector, except by turning the engine.

    If no bleed screw can be found on the pump, just loosen the fitting where fuel goes into the pump.

    If you can route the pipe from the tank so it is downhill all the way to the pump, any air should tend to go back up to the tank.

  2. #32
    Mr Solex Zanx's Avatar
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    Default Re: My first roadside repair *sniff*

    Quote Originally Posted by ink ink View Post
    I don't think it will bleed through the injection pump to the injector, except by turning the engine.

    If no bleed screw can be found on the pump, just loosen the fitting where fuel goes into the pump.

    If you can route the pipe from the tank so it is downhill all the way to the pump, any air should tend to go back up to the tank.
    Cool, thanks.

    So just so I'm clear, is it unlikely that a bubble will pass the fuel pump and make it's way up to the injector? If it is possible, then a bleed valve at the pump wouldn't work.

  3. #33
    Should Get Out More ink ink's Avatar
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    Default Re: My first roadside repair *sniff*

    Quote Originally Posted by Zanx View Post
    Cool, thanks.

    So just so I'm clear, is it unlikely that a bubble will pass the fuel pump and make it's way up to the injector? If it is possible, then a bleed valve at the pump wouldn't work.
    I worked with diesel tractors, vans, barn/industrial engines and lorries and there were different behaviours when they ran out of diesel. Some would restart easily just by twirling the starter,some needed the low pressure side bled at the pump, some needed that and injector pipes loosened for a few turns of the starter.

    Many pumps need enough diesel in them to prime them: once they start pumping they will force diesel to the injector. But not all of them did it. Not much help I know!

  4. #34
    Should Get Out More Tomcat's Avatar
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    Default Re: My first roadside repair *sniff*

    Quote Originally Posted by Zanx View Post
    So just so I'm clear, is it unlikely that a bubble will pass the fuel pump and make it's way up to the injector? If it is possible, then a bleed valve at the pump wouldn't work.
    AFAIK, once the bubble is past the fuel pump, pump pressure should keep it moving. The problem is when the bubble is downstream of the pump (suction side) you can't get enough suction to move it through the system because it vapour locks.

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    Default Re: My first roadside repair *sniff*

    Just thought of something- if your tap has a reserve position, it would be better left on reserve all the time, maybe. Put a pint bottle of diesel in the toolbox for emergencies.

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    Annoying The Idiots Yorick's Avatar
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    Default Re: My first roadside repair *sniff*

    WOT ?

    wossat ?

  7. #37
    Really Bored choc-ice's Avatar
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    Default Re: My first roadside repair *sniff*

    Quote Originally Posted by Yorick View Post
    WOT ?

    wossat ?
    WOT - Wide Open Throttle.

  8. #38
    Should Get Out More Cousin Jack's Avatar
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    Default Re: My first roadside repair *sniff*

    Quote Originally Posted by Yorick View Post
    WOT ?

    wossat ?
    Glad you asked - that one had me beaten too, but I didn't like to show my ignorance.

  9. #39
    Should Get Out More ZRX61's Avatar
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    Default Re: My first roadside repair *sniff*

    Pulled into the RockStore parking lot one day & some chap had the cams out of his CB750....

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